| | 1 | Author
| Z. Naturforsch | Requires cookie* | | | Title
| Acyclo C-Nucleosides Analogues of Condensed 1,2,4-Triazines  | | | | Abstract
| 1-Acyclo C-nucleosides of 7-methyl-10//-l,2,4-triazolo[3,,4':3,4][l,2,4]triazino[5,6-£>]indoles (9) have been prepared by cyclodehydrogenation of the sugar derivatives of 3-hydrazino-8-methyl-5//-l,2,4-triazino[5,6-6]indole (1). The respective linear isomer as 4 has been pre pared by a dehydrative cyclization of the amides of 1. Acetylation of the sugar hydrazones and their cyclized products gave the per-7V,0-acetyl derivatives. The molecular connectivity of the products was established by *H, 13C, and 2D H ,H Cosy spectra. | | | |
Reference
| Z. Naturforsch. 52b, 873—882 (1997); received February 17 1997 | | | |
Published
| 1997 | | | |
Keywords
| Acyclo C-Nucleoside, 1, 2, 4-Triazine, Indole, Triazinoindole, Triazolotriazinoindole | | | |
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| default:Reihe_B/52/ZNB-1997-52b-0873.pdf | | | | Identifier
| ZNB-1997-52b-0873 | | | | Volume
| 52 | |
| 2 | Author
| SanaaM. Eldin | Requires cookie* | | | Title
| Reactions of Cyanothioacetamide Derivatives with 2-Hydrazinothiazol-4(5//)-one: Synthesis, Cyclization and Biological Evaluation of Several New Annelated Pyran, Thiazole, 1,2,4-Triazole and 1,2,4-Triazine Derivatives | | | | Abstract
| The thiocarboxamidocinnamonitriles (2) reacted with 2-hydrazinothiazol-4(5//)-one (3) to afford the corresponding pyrano[2,3-d]thiazoles (6). Compounds 6 were used for the synthe sis of several new annelated pyran, thiazole, 1,2,4-triazole and 1,2,4-triazine derivatives via their reactions with chloroacetic acid, ethyl chloroformate, diethyl oxalate and acetylacetone. Structures were established based on elemental and spectral data studies. Some of the newly synthesized heterocyclic derivatives were tested for their antimicrobial activity. | | | |
Reference
| Z. Naturforsch. 54b, 1589—1597 (1999); received July 2 1999 | | | |
Published
| 1999 | | | |
Keywords
| Thiocaboxamidocinnamonitriles, Pyrans, Thiazoles, 1, 2, 4-Triazoles, 1, 2, 4-Triazines | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1589.pdf | | | | Identifier
| ZNB-1999-54b-1589 | | | | Volume
| 54 | |
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